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Finding the Fourth Proportional to 51,981.60, 77,826.60 and 50,523.60

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Solution

The fourth proportional to 51,981.60, 77,826.60 and 50,523.60 is: 75,643.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,981.60 : 77,826.60 = 50,523.60 : x
  2. Step 2: Convert to fraction form
    51,981.60/77,826.60 = 50,523.60/x
  3. Step 3: Cross multiply
    51,981.60x = 77,826.60 × 50,523.60
  4. Step 4: Simplify right side
    51,981.60x = 3,932,080,007.76
  5. Step 5: Solve for x
    x = 3,932,080,007.76/51,981.60
  6. Step 6: Final answer
    x = 75,643.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.